Birth_weight {mosaicModel}

Birth weights and maternal data

Description

Birth weight, date, and gestational period collected as part of the Child Health and Development Studies in 1961 and 1962. Information about the baby's parents — age, education, height, weight, and whether the mother smoked is also recorded. The data were present by Nolan and Speed to address the question of whether there is a link between maternal smoking and the baby's health.

Usage

data(Birth_weight)

Format

A data frame with 886 observations on the following variables.

• baby_wt Birth weight of baby, in ounces.

• mother_wt in pounds

• gestation Length of the pregnancy, in days.

• smoker Whether the mother smoked during the pregnancy.

• incomeFamily yearly income in 2500USD increments 0 = under 2500, 1=2500-4999, ..., 8= 12,500-14,999, 9=15000+

Source

D. Nolan and T.P. Speed (2009) "Stat Labs: Mathematical Statistics Through Applications"

Examples

mod_1 <- lm(baby_wt ~ gestation + mother_wt, data = Birth_weight)
mod_effect(mod_1, ~ gestation)